122071667509 has 8 divisors (see below), whose sum is σ = 136768256928. Its totient is φ = 107974938960.

The previous prime is 122071667507. The next prime is 122071667513. The reversal of 122071667509 is 905766170221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122071667509 - 2¹ = 122071667507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122071667507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149964787 + ... + 149965600.

It is an arithmetic number, because the mean of its divisors is an integer number (17096032116).

Almost surely, 2^122071667509 is an apocalyptic number.

It is an amenable number.

122071667509 is a deficient number, since it is larger than the sum of its proper divisors (14696589419).

122071667509 is a wasteful number, since it uses less digits than its factorization.

122071667509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299930435.

The product of its (nonzero) digits is 317520, while the sum is 46.

It can be divided in two parts, 1220716 and 67509, that added together give a square (1288225 = 1135²).

The spelling of 122071667509 in words is "one hundred twenty-two billion, seventy-one million, six hundred sixty-seven thousand, five hundred nine".